Environment: MPE/iX 6.5 and Cobol 85

FPOINT intrinsic is returning an "OPERATION INCONSISTENT WITH ACCESS
TYPE  (FSERR 40)" against a bytestream file FOPENed with FOPTION =
%40107 and AOPTION = %0.

:LISTF,2 reports:

ACCOUNT=  SYSDEV      GROUP=  QWERTYIW

FILENAME  CODE  ------------LOGICAL RECORD-----------  ----SPACE----
                  SIZE  TYP        EOF      LIMIT R/B  SECTORS #X MX

FNAC1               1B  BA        4605 2147483647   1      256  1  *

:LISTF,3 reports:

FILE: FNAC1.QWERTYIW.SYSDEV          

FILE CODE : 0                   FOPTIONS: ASCII,BYTESTREAM,NOCCTL,STD
BLK FACTOR: 1                   CREATOR : **                   
REC SIZE: 1(BYTES)              LOCKWORD: **                   
BLK SIZE: 1(BYTES)              SECURITY--READ    : ANY        
EXT SIZE: 0(SECT)                         WRITE   : ANY        
NUM REC: 4605                             APPEND  : ANY        
NUM SEC: 256                              LOCK    : ANY        
NUM EXT: 1                                EXECUTE : ANY        
MAX REC: 2147483647                     **SECURITY IS ON       
                                FLAGS   : NO ACCESSORS         
NUM LABELS: 0                   CREATED : WED, SEP 28, 2005, 11:54 AM
MAX LABELS: 0                   MODIFIED: WED, SEP 28, 2005, 11:54 AM
DISC DEV #: 14                  ACCESSED: FRI, OCT  7, 2005, 12:34 PM
SEC OFFSET: 0                   LABEL ADDR: **                 
VOLCLASS  : MPEXL_SYSTEM_VOLUME_SET:DISC

What am I doing wrong? 

regards, 
  
Robert W.Mills 
Systems Development Manager 
Windsong Services 
(020) 8309 3604 

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